I'm going to nitpick first: WTF was up with the pronunciations. Characters names were pronounced differently than they were in the show, and there was no reason for it.
From what I understand, the pronunciations are changed because that's how Shyamalan thought the spellings should be pronounced (yeah, I don't get it either).
So he changed the pronounciations but couldn't direct them to act?
Why does this guy keep getting work?
I guess we shouldn't look foward to a Book II.